TInterfaceRegistrator.h

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// SPDX-License-Identifier: LGPL-2.1-or-later OR GPL-2.0-or-later OR GPL-3.0-or-later OR LicenseRef-ACF-Commercial
#pragma once
 
 
// ACF includes
#include <istd/CClassInfo.h>
 
#include <icomp/CBaseComponentStaticInfo.h>
 
 
namespace icomp
{
 
 
template <class Interface>
class TInterfaceRegistrator
{
public:
       explicit TInterfaceRegistrator(CBaseComponentStaticInfo& staticInfo);
 
protected:
       static void* InterfaceExtractor(IComponent& component);
};
 
 
// public methods
 
template <class Interface>
TInterfaceRegistrator<Interface>::TInterfaceRegistrator(CBaseComponentStaticInfo& staticInfo)
{
       istd::CClassInfo info = istd::CClassInfo::GetInfo<Interface>();
 
       if (!info.IsVoid()){
              staticInfo.RegisterInterfaceExtractor(info.GetName(), TInterfaceRegistrator<Interface>::InterfaceExtractor);
       }
}
 
 
template <>
inline TInterfaceRegistrator<void>::TInterfaceRegistrator(CBaseComponentStaticInfo& /*staticInfo*/)
{
}
 
 
// protected methods
 
template <class Interface>
void* TInterfaceRegistrator<Interface>::InterfaceExtractor(IComponent& component)
{
       void* retVal = dynamic_cast<Interface*>(&component);
 
       return retVal;
}
 
 
template <>
inline void* TInterfaceRegistrator<void>::InterfaceExtractor(IComponent& /*component*/)
{
       return NULL;
}
 
 
} // namespace icomp